Calendar
LEDs 2008
Sept. 29-October 1, 2008
Booth 56
San Diego, California
Click here for more details
OSA Frontiers in Optics
October 19-23, 2008
Booth 514
Rochester, New York
Visit website
Introduction to LightTools
Nov. 3-5, 2008
Salzburg, Austria
Contact OEC for registration
Selected Advanced Topics in LightTools
Nov. 6-7, 2008
Salzburg, Austria
Contact OEC for registration
LightTools SolidWorks® Link Module Product Demo Tour
Nov. 17-21, 2008
Barcelona, Madrid, Amsterdam, Milan, Paris
Contact OEC for registration
SPIE Photonics West 2009
January 24-29, 2009
San Jose, California
Booth 615
Visit website
SPIE BiOS 2009
January 24-29, 2009
San Jose, California
Booth 8615
Visit SPIE Web site
Introduction to Illumination Design Using LightTools
March 2-4, 2009
Pasadena, California
Click here for more details and to enroll
Advanced Topics in LightTools: Optimization, COM/API, and Photorealistic Rendering
March 5-6, 2009
Pasadena, California
Click here for more details and to enroll
For a complete list of LightTools events worldwide: visit our website
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Enhanced Version of Backlight Pattern Optimizer Available
An updated version of the LightTools Backlight Pattern Optimizer (BPO) is now available for download from ORA's Customer Service web site, www.oraservice.com. BPO version 6.1 SR1 includes several enhancements that can be used for all backlit applications, but also includes new features aimed specifically at keypad applications.
Specific enhancements in BPO 6.1 SR1 include:
- The ability to simultaneously optimize multiple pattern zones (earlier versions supported only a single zone).
- The ability to define a combination of fixed and variable texture bins using merit function weights. Only the variable bins will change during optimization.
- The support of high resolution optimization targets to more fully support keypad design.
- User interface enhancements including:
- A switch to display merit function weights
- A new pixel smoothing option for raster charts
- An option to uncompress the prediction display for high resolution targets
- A switch to delete the receiver mesh outline drawn when running BPO
The additional support of high resolution target patterns as the optimization merit function greatly facilitates the design of keypad applications. The high resolution target file is used to define the expected illumination output. Both portable gray map (pgm) and portable bit map (pbm) files are supported. The figure below shows an example of a keypad target file. This is a .pgm file created using Paint Shop Pro:
The figures below, show the illuminance and density pattern before and after BPO was used to optimize the keypad using the target pattern above.
Before Optimization |
After Optimization |
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Illuminance |
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Density |
The following figure shows the initial texture pattern, as well as the optimized texture pattern after using BPO 6.1 SR1.
You can download this updated version of BPO from www.oraservice.com, under . This download is a .zip file that includes Release Notes describing the BPO 6.1 SR1 enhancements in more detail, the updated BPO program files, and instructions on how to replace the existing BPO program files with these updated version. This BPO update required LightTools version 6.1.
Updated Documentation for Using BSDF Scatter Data in LightTools
LightTools 6.1 includes a new feature that allows users to include measured BSDF scatter data in their models. The original documentation shipped with 6.1, Using Measured BSDF Scatter Data in LightTools, primarily focused on using measured data provided by ORA, currently available for download from www.oraservice.com. We have updated this documentation to include specific details on the format of the scatter data files so that users who wish to use their own measured data can do so. A copy of the updated document is available on the Customer Service Web site, www.oraservice.com.
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